We propose and demonstrate a fiber-array-based detection scheme for single-shot pulse contrast characterization. The parallel to serial mapping using the fiber array allows the use of a high-sensitivity photomultiplier tube and eliminates the external neutral density filter, both resulting in significantly improved dynamic range. The proof-of-principle experiments show a dynamic range of 2 X 10~(7):1. The demonstrated technique can be readily applied to existing instruments for single-shot pulse characterization.
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机译：我们提出并演示了基于光纤阵列的单脉冲脉冲对比度表征检测方案。使用光纤阵列进行的并行到串行映射允许使用高灵敏度光电倍增管，并且省去了外部中性密度滤光片，两者均可以显着改善动态范围。原理验证实验显示了2 X 10〜（7）：1的动态范围。所证明的技术可以很容易地应用于现有的用于单脉冲表征的仪器。
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